@@ 6,6 6,7 @@ import (
 	"flag"
 	"fmt"
 	"io/ioutil"
+	"log"
 	"net/http"
 	"net/url"
 	"os"


@@ 83,13 84,12 @@ func search(ctx context.Context, term string) (*definition, error) {
 	return &data.List[0], nil
 }
 
-func perror(msg string, things ...interface{}) {
-	fmt.Printf("wtf2: "+msg, things...)
-	os.Exit(1)
-}
-
 func main() {
+	log.SetPrefix("wtf2: ")
+	log.SetFlags(0)
+
 	flag.Parse()
+
 	args := os.Args[1:]
 
 	if len(args) > 0 && args[0] == "is" {


@@ 113,9 113,9 @@ func main() {
 
 	maxwidth, err := strconv.Atoi(*width)
 	if err != nil {
-		perror("failed to parse -w max width option: %w", err)
+		log.Fatalf("failed to parse -w max width option: %w", err)
 	} else if maxwidth < 1 {
-		perror("not a valid value for -w max width must be positive")
+		log.Fatalf("not a valid value for -w max width must be positive")
 	}
 
 	var eg errgroup.Group


@@ 123,7 123,7 @@ func main() {
 
 	timeout, err := strconv.Atoi(*timeoutStr)
 	if err != nil {
-		perror("failed to parse -t timeout option: %w", err)
+		log.Fatalf("failed to parse -t timeout option: %w", err)
 	}
 
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*time.Duration(timeout))


@@ 144,7 144,7 @@ func main() {
 	}
 
 	if err := eg.Wait(); err != nil {
-		perror("%s", err)
+		log.Fatal(err)
 	}
 
 	close(ch)